US Bridges

FM over Small Stream

Good

Butler County, Iowa · 093183401 · Structure no. 000000000090091

Built
1999
26 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
540
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Small Stream is a concrete continuous slab carrying FM over Small Stream in Butler County, Iowa. It was built in 1999, so it is 26 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 540 vehicles a day, roughly 32% of them trucks, projected to reach 540 by 2044. The structure is 90 ft (27.4 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFM
CrossesSmall Stream
Location093183401
RouteCounty Highway 0
StateIowa
Coordinates42.83312, -92.95853
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.7 US tons
Inventory rating50 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span34 ft (10.4 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic540 (2022)
Projected traffic540 by 2044
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$270,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Small Stream built?

It was built in 1999, making it 26 years old in 2025.

What condition is FM over Small Stream in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.

How much traffic does FM over Small Stream carry?

About 540 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is FM over Small Stream?

The structure is 90 ft (27.4 m) long with a longest span of 34 ft (10.4 m) and a deck 33 ft wide.

Who owns FM over Small Stream?

It is owned by the County Highway Agency.